摘要：在电力系统中，各种类型的、大量的电气设备通过电气线路紧密地联结在一起。由于其覆盖的地域极其辽阔、运行环境极其复杂以及各种人为因素的，电气故障的发生是不可避免的。由于电力系统的特殊性，上述五个环节应是环环相扣、时时平衡、缺一不可，又几乎是在同一时间内完成的。在电力系统中的任何一处发生事故，都有可能对电力系统的运行产生重大影响。
关键词：电力系统; 发电变电 ;输电配电
Discusses the 10KV power supply system shallowly the relay protection
Abstract:In the electrical power system, each kind of type, the massive electrical equipment through the electrical line joins closely in together.Because its cover region is extremely vast, the movement environment is extremely complex as well as each human factor, the electrical failure occurrence is inevitable. As a result of the electrical power system particularity, the above five links should be are linked together, balance at times, indispensably, also is nearly completes during the same period of time.Has the accident in electrical power system any, all has the possibility to have the significant influence to the electrical power system movement.
Key word: The electrical power system electricity generation changes the electricity electric transmission power distribution
